You may have dropped a valve. Run a compression check and if you get 0 compression on one or more cylinders, you need to at least pull the heads, then you can see what else needs to be done.
The popping from the exhaust and the lack of power sounds like there is something in the timing. Most likely the timing chain is worn and needs replacing.
I hope this is not a ford because you are not sopposed to clean those ones
3 components of combustion are spark, fuel and compression. You think you eliminated 2 of them, leaving fuel. Spray starting fluid into the throttle body, then crank it and see if it starts temporarily. If so lack of fuel is right. Check the cold start fuel injector. I have a '91 with same problem. Removed the cold start fuel injector, which was VERY gummed up, sprayed it off with throttle body cleaner, re-installed it, engine started perfectly. You can find this on about the middle of the throttle body housing. It will have a small fuel rail and electrical connector.
If wiiggling some cables or wires helps to start the car, look for a loose connection or corrosion where the cables/wires connect to.
theres not really a why its just the way your body operates. you won't get it the exact same time every month. Because sometimes your body calendar for your period is off a little bit. especially if you just started your period.
if you have an electrical fuel pump can sometimes do that
Chinese started popping fireworks on new years in order to get rid of and furthermore scare the evil spirits away.
Your 1987 Astro might go full throttle when the engine is started because the throttle is sticking. This could also be a problem with the starter or the ignition hanging during the start.
converter stopped up
stuck throttle butterfly plate
Popcorn was discovered one very hot day when the corn just started popping!
It sounds like you threw a Rod
yes. Depending on how long the engine was allowed to run low on oil, it may have suffered serious damage which would shorten it's life span.
Clean the throttle position sensor and throttle plate, then use electrical contact cleaner to clean the air flow sensor at the air filter.
it was running fine and then it started popping thru the tbi and wouldnt run very well had no power
your oil pump could have gone bad or you have a restriction in the flow like a clogged oil filter. needless to say if it is knocking it may have caused major dammage
Throttle plate stuck Control cable bound? Throttle body assembly?